PREASSEMBLED STAIR TREAD RUN CHART
Use this chart to find the length of total run for a stair from rough header to nosed edge of first tread. 2 (add a minimum of 36" to wall)
Run per tread 3
9*
9 1 /
9
1 /
9
3 /
9
1 /
9
5 /
9
3 /
9
7 /
10
10
1 /
10
1 /
10
3 /
11
8
4
8
2
8
4
8
4
2
4
1
11 1 /
11
5 /
11
3 /
11
7 /
12
12
1 /
12
1 /
12
3 /
12
1 /
12
3 /
13
13
1 /
13
1 /
2
8
4
8
8
4
8
2
4
4
2
2
20 1 /
20
3 /
21
21 1 /
21
1 /
21
3 /
22
22
1 /
22
1 /
23
23
1 /
24
24
1 /
2
4
2
4
4
2
2
2
3
29 1 /
29
7 /
30
1 /
30
5 /
31
31
3 /
31
3 /
32
1 /
32
1 /
33
1 /
34
34
3 /
35
1 /
2
8
4
8
8
4
8
2
4
4
2
4
38 1 /
39
39
1 /
40
40
1 /
41
41
1 /
42
42
1 /
43
1 /
44
1 /
45
1 /
46
1 /
2
2
2
2
2
2
2
2
2
5
47 1 /
48
1 /
48
3 /
49
3 /
50
50
5 /
51
1 /
51
7 /
52
1 /
53
3 /
55
56
1 /
57
1 /
2
8
4
8
8
4
8
2
4
4
2
6
56 1 /
57
1 /
58
58
3 /
59
1 /
60
1 /
61
61
3 /
62
1 /
64
65
1 /
67
68
1 /
2
4
4
2
4
4
2
2
2
7
65 1 /
66
3 /
67
1 /
68
1 /
69
69
7 /
70
3 /
71
5 /
72
1 /
74
1 /
76
77
3 /
79
1 /
2
8
4
8
8
4
8
2
4
4
2
8
74 1 /
75
1 /
76
1 /
77
1 /
78
1 /
79
1 /
80
1 /
81
1 /
82
1 /
84
1 /
86
1 /
88
1 /
90
1 /
2
2
2
2
2
2
2
2
2
2
2
2
2
9
83 1 /
84
5 /
85
3 /
86
7 /
88
89
1 /
90
1 /
91
3 /
92
1 /
94
3 /
97
99
1 /
101
1 /
2
8
4
8
8
4
8
2
4
4
2
10
92 1 /
93
3 /
95
96
1 /
97
1 /
98
3 /
100
101
1 /
102
1 /
105
107
1 /
110
112
1 /
2
4
4
2
4
4
2
2
2
11
101 1 /
102
7 /
104
1 /
105
5 /
107
108
3 /
109
3 /
111
1 /
112
1 /
115
1 /
118
120
3 /
123
1 /
2
8
4
8
8
4
8
2
4
4
2
12
110 1 /
112
113
1 /
115
116
1 /
118
119
1 /
121
122
1 /
125
1 /
128
1 /
131
1 /
134
1 /
2
2
2
2
2
2
2
2
2
13
119 1 /
121
1 /
122
3 /
124
3 /
126
127
5 /
129
1 /
130
7 /
132
1 /
135
3 /
139
142
1 /
145
1 /
2
8
4
8
8
4
8
2
4
4
2
14
128 1 /
130
1 /
132
133
3 /
135
1 /
137
1 /
139
140
3 /
142
1 /
146
149
1 /
153
156
1 /
2
4
4
2
4
4
2
2
2
15
137 1 /
139
3 /
141
1 /
143
1 /
145
146
7 /
148
3 /
150
5 /
152
1 /
156
1 /
160
163
3 /
167
1 /
2
8
4
8
8
4
8
2
4
4
2
*Minimum run by code
Notes:
1. Number of treads = One less tread than number of risers 2. This chart includes 2-1/2" (3/4" Top Riser & 1-1/8" overhang on bottom and 5/8 shim space) 3. Run per tread does not include overhang
Riser Height Chart
Use this chart by locating total rise in matrix and select number of risers & rise from shaded areas. More than one option is possible for stairs in excess of 6 risers.
Rise per step
1
7
7 1 /
7
1 /
7
3 /
7
7 /
7
1 /
7
9 /
7
5 /
7
11 /
7
3 /
7
3 /
7
7 /
7
15 /
8
8
1 /
8
1 /
8
3 /
8
1 /
8
4
8
16
2
16
8
16
4
16
8
16
16
8
16
4
2
14
14 1 /
14
1 /
14
3 /
14
7 /
15
15
1 /
15
1 /
15
3 /
15
1 /
15
5 /
15
3 /
15
7 /
16
16
1 /
16
1 /
16
3 /
16
1 /
4
2
4
8
8
4
8
2
8
4
8
8
4
8
2
3
21
21 3 /
21
3 /
22
1 /
22
5 /
22
1 /
22
11 /
22
7 /
23
1 /
23
1 /
23
7 /
23
5 /
23
13 /
24
24
3 /
24
3 /
24
9 /
24
3 /
8
4
8
16
2
16
8
16
4
16
8
16
16
8
16
4
4
28
28 1 /
29
29
1 /
29
3 /
30
30
1 /
30
1 /
30
3 /
31
31
1 /
31
1 /
31
3 /
32
32
1 /
32
1 /
32
3 /
33
2
2
4
4
2
4
4
2
4
4
2
4
5
35
35 5 /
36
1 /
36
7 /
37
3 /
37
1 /
37
3 /
38
1 /
38
7 /
38
3 /
39
1 /
39
3 /
39
11 /
40
40
5 /
40
5 /
40
15 /
41
1 /
8
4
8
16
2
16
8
16
4
16
8
16
16
8
16
4
6
42
42 3 /
43
1 /
44
1 /
44
3 /
45
45
3 /
45
3 /
46
1 /
46
1 /
46
7 /
47
1 /
47
5 /
48
48
3 /
48
3 /
49
1 /
49
1 /
4
2
4
8
8
4
8
2
8
4
8
8
4
8
2
7
49
49 7 /
50
3 /
51
5 /
52
1 /
52
1 /
52
15 /
53
3 /
53
13 /
54
1 /
54
11 /
55
1 /
55
9 /
56
56
7 /
56
7 /
57
5 /
57
3 /
8
4
8
16
2
16
8
16
4
16
8
16
16
8
16
4
8
56
57
58
59
59 1 /
60
60
1 /
61
61
1 /
62
62
1 /
63
63
1 /
64
64
1 /
65
65
1 /
66
2
2
2
2
2
2
2
9
63
64 1 /
65
1 /
66
3 /
66
15 /
67
1 /
68
1 /
68
5 /
69
3 /
69
3 /
70
5 /
70
7 /
71
7 /
72
72
9 /
73
1 /
73
11 /
74
1 /
8
4
8
16
2
16
8
16
4
16
8
16
16
8
16
4
10 70
71 1 /
72
1 /
73
3 /
74
3 /
75
75
5 /
76
1 /
76
7 /
77
1 /
78
1 /
78
3 /
79
3 /
80
80
5 /
81
1 /
81
7 /
82
1 /
4
2
4
8
8
4
8
2
8
4
8
8
4
8
2
11 77
78 3 /
79
3 /
81
1 /
81
13 /
82
1 /
83
3 /
83
7 /
84
9 /
85
1 /
85
15 /
86
5 /
87
5 /
88
88
11 /
89
3 /
90
1 /
90
3 /
8
4
8
16
2
16
8
16
4
16
8
16
16
8
16
4
12 84
85 1 /
87
88
1 /
89
1 /
90
90
3 /
91
1 /
92
1 /
93
93
3 /
94
1 /
95
1 /
96
96
3 /
97
1 /
98
1 /
99
2
2
4
4
2
4
4
2
4
4
2
4
13 91
92 5 /
94
1 /
95
7 /
96
11 /
97
1 /
98
5 /
99
1 /
99
15 /
100
3 /
101
9 /
102
3 /
103
3 /
104
104
13 /
105
5 /
106
7 /
107
1 /
8
4
8
16
2
16
8
16
4
16
8
16
16
8
16
4
14 98
99 3 /
101
1 /
103
1 /
104
1 /
105
105
7 /
106
3 /
107
5 /
108
1 /
109
3 /
110
1 /
111
1 /
112
112
7 /
113
3 /
114
5 /
115
1 /
4
2
4
8
8
4
8
2
8
4
8
8
4
8
2
15 105 106 7 / 8
108
3 /
110
5 /
111
9 /
112
1 /
113
7 /
114
3 /
115
5 /
116
1 /
117
3 /
118
1 /
119
1 /
120
120
15 /
121
7 /
122
13 /
123
3 /
4
8
16
2
16
8
16
4
16
8
16
16
8
16
4
16 112
114
116
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
17 119 121 1 / 8
123
1 /
125
3 /
126
7 /
127
1 /
128
9 /
129
5 /
130
11 /
131
3 /
132
13 /
133
7 /
134
15 /
136
137
1 /
138
1 /
139
3 /
140
1 /
4
8
16
2
16
8
16
4
16
8
16
16
8
16
4
Max. floor to floor height = 144"
18 126 128 1 / 4
130
1 /
132
3 /
133
3 /
135
136
1 /
137
1 /
138
3 /
139
1 /
140
5 /
141
3 /
142
7 /
144
2
4
8
8
4
8
2
8
4
8
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